Do you think I should get tested?

I've usually done oral before with two people before my long term relationship but never had sex and never swallowed. But if i had a bf waaay after that for 1 yr 8months and had unprotectd sex but partners(both bf and gf) were completely clean and were each others firsts to do it and then we also did oral and I swallowed a lot but then way later and a long time after they broke up i did it protectd and did oral but swallowed only a tiny bit but with another partner should I get tested? 
Where can I get tested? 
Does statMd do it?
Where can I get tested for free? 
Best way to get tested? Because I hate blood tests but if that is the best method then fine. Lol