Don't know what to do...

Hi, Mommies. I am 29 y.o., single, still living with my parents, but I have a stable job. My ex boyfriend just broke up with me 2 days ago, because according to him, he is still in love with his ex. The thing is, I still don't know if I am preggy or not. My last menstrual cycle was last March 26-30 and we had contact on the 9th of April, which is according to my period tracker, it is the date where I have a high chance to get pregnant. If one day I found out that I am pregnant, sasabihin ko ba sa kanya? Well, eventually naman, he will find out din kasi same company lang kami natatrabaho, with his father. And how to tell this to my parents? I will surely hurt them, esp. I am their bunso. I know it is early pa na problemahin to because I am not sure yet if I am really pregnant. Pero gusto ko lang kasi i-ready ang sarili ko. Thank you sa mga sasagot.