Hi, ill try explain this as best i can without waffling too much

.. my story is i was in a relationship for 11 yrs, engaged but all ended, met my soulmate shortly after and love him to bits, we together now 2 yrs, i found out in feb i was pregnant, he has 2 kids from previous lady he was married to for 13 yrs. he was not at all happy about pregnancy although we had talked about it n both wanted kids together just bad timing i guess, i have been through the mill d last 3 mths, he wanted me to have an abortion. i disagreed babies r precious, so i am now 16 weeks n healthy as i can be, he has come around d last month n now says he wants me n our baby. but i found out a month ago he asked his ex to taake him back. god im so emotional all the time i cant think straight.. i know hes a good dad, so much going on for him right now, yes sounds like excuses but i dont think i can get passed this with him, he wants us to put it all in d past n have a life together. any advice, opinions, wud be so so much appreaciated