mY ILLIGITIMATE CHILD

Hello po, I am Erwin Mauritius Ocampo I read this post about illigitimate childrens, and i was wondering if ever you could help me out. I am really worried because the situation between me and the mother of my child is not so good so as the family of both parties. I became so attach to my son na I am afraid that someday they will take him away from me. He is carrying my last name though. Right now the situation is that the mother is outside of the country, I tried communicating with her about our child however she would not reply, yung situation una is that we agreed that the child would spend 15 days on each family, if ever my son is with me I am the one providing the supplies and the needs of the child, then if he is on the other family they are responsible for his needs. but kawawa yung bata everytime na kunin na sya sa kabila he would really cry so much, and to think na wala yung mom nya physically and i think he is not taken cared of that well sa kanyang lolo sa mother side nya. and by the way my son is still 3 years old. I just want to know how will this go, Can i fight for the custody of my son? or since the mother is not physically present for the kid and I am the biological father and willing to take care of him can i claim custody over my son? Pls help me out. Thank you

" Can i fight for the custody of my son? or since the mother is not physically present for the kid and I am the biological father and willing to take care of him can i claim custody over my son? "
Well. It's possible to TRY,
BUT you better NOT (yet) because up to 7yo, the MOTHER will almost sure winn when it become a court case.
So you have a much BETTER deal now than what fathers have normaly.