Constipation

Ladies, I'm sorry for the tmi but I'm seriously at wits end with this. I haven't gone to the bathroom since Monday (it's is Friday night). First couple days didn't feel the need. Last couple days however I really need to! I've tried prune juice (very little as the taste makes me gag) and have been taking stool softeners. Since Tuesday I have been on an antibiotic for a UTI and also started zofran this week. But now today I just feel disgusting all over, back pain, bloated, have attempted at least 10 times and feel the urge but just pass gas. I have never felt so disgusting and so miserable and so bloated in my life. I don't remember going this long with my 2.5 year old. Is there anything else safe to take? Again sorry for (possible) tmi! Thanks in advance!